static int sdhci_acpi_add_own_cd(struct device *dev, struct mmc_host *mmc)
{
struct gpio_desc *desc;
unsigned long flags;
int err, irq;
desc = devm_gpiod_get_index(dev, "sd_cd", 0);
if (IS_ERR(desc)) {
err = PTR_ERR(desc);
goto out;
}
err = gpiod_direction_input(desc);
if (err)
goto out_free;
irq = gpiod_to_irq(desc);
if (irq < 0) {
err = irq;
goto out_free;
}
flags = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING;
err = devm_request_irq(dev, irq, sdhci_acpi_sd_cd, flags, "sd_cd", mmc);
if (err)
goto out_free;
return 0;
out_free:
devm_gpiod_put(dev, desc);
out:
dev_warn(dev, "failed to setup card detect wake up\n");
return err;
}
void mctrl_gpio_free(struct device *dev, struct mctrl_gpios *gpios)
{
enum mctrl_gpio_idx i;
for (i = 0; i < UART_GPIO_MAX; i++) {
if (gpios->irq[i])
devm_free_irq(gpios->port->dev, gpios->irq[i], gpios);
if (gpios->gpio[i])
devm_gpiod_put(dev, gpios->gpio[i]);
}
devm_kfree(dev, gpios);
}
static int pimhyp3_ts_remove(struct i2c_client *client)
{
struct pimhyp3_ts_data *ts = i2c_get_clientdata(client);
if (ts->gpiod_int)
devm_gpiod_put(&client->dev, ts->gpiod_int);
if (ts->use_poll)
kthread_stop(ts->thread);
else
pimhyp3_free_irq(ts);
return 0;
}
static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_card *card = rtd->card;
struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
struct snd_soc_dapm_context *dapm = &codec->dapm;
int err;
/* Set up NC codec pins */
snd_soc_dapm_nc_pin(dapm, "MIC3L");
snd_soc_dapm_nc_pin(dapm, "MIC3R");
snd_soc_dapm_nc_pin(dapm, "LINE1R");
err = tpa6130a2_add_controls(codec);
if (err < 0) {
dev_err(card->dev, "Failed to add TPA6130A2 controls\n");
return err;
}
snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
err = omap_mcbsp_st_add_controls(rtd, 2);
if (err < 0) {
dev_err(card->dev, "Failed to add MCBSP controls\n");
return err;
}
/* AV jack detection */
err = snd_soc_jack_new(codec, "AV Jack",
SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
&rx51_av_jack);
if (err) {
dev_err(card->dev, "Failed to add AV Jack\n");
return err;
}
/* prepare gpio for snd_soc_jack_add_gpios */
rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio);
devm_gpiod_put(card->dev, pdata->jack_detection_gpio);
err = snd_soc_jack_add_gpios(&rx51_av_jack,
ARRAY_SIZE(rx51_av_jack_gpios),
rx51_av_jack_gpios);
if (err) {
dev_err(card->dev, "Failed to add GPIOs\n");
return err;
}
return err;
}
/**
* mmc_gpiod_free_cd - free the card-detection gpio descriptor
* @host: mmc host
*
* It's provided only for cases that client drivers need to manually free
* up the card-detection gpio requested by mmc_gpiod_request_cd().
*/
void mmc_gpiod_free_cd(struct mmc_host *host)
{
struct mmc_gpio *ctx = host->slot.handler_priv;
if (!ctx || !ctx->cd_gpio)
return;
if (host->slot.cd_irq >= 0) {
devm_free_irq(&host->class_dev, host->slot.cd_irq, host);
host->slot.cd_irq = -EINVAL;
}
devm_gpiod_put(&host->class_dev, ctx->cd_gpio);
ctx->cd_gpio = NULL;
}
static void asc_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
struct asc_port *ascport = to_asc_port(port);
struct device_node *np = port->dev->of_node;
struct gpio_desc *gpiod;
unsigned int baud;
u32 ctrl_val;
tcflag_t cflag;
unsigned long flags;
/* Update termios to reflect hardware capabilities */
termios->c_cflag &= ~(CMSPAR |
(ascport->hw_flow_control ? 0 : CRTSCTS));
port->uartclk = clk_get_rate(ascport->clk);
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
cflag = termios->c_cflag;
spin_lock_irqsave(&port->lock, flags);
/* read control register */
ctrl_val = asc_in(port, ASC_CTL);
/* stop serial port and reset value */
asc_out(port, ASC_CTL, (ctrl_val & ~ASC_CTL_RUN));
ctrl_val = ASC_CTL_RXENABLE | ASC_CTL_FIFOENABLE;
/* reset fifo rx & tx */
asc_out(port, ASC_TXRESET, 1);
asc_out(port, ASC_RXRESET, 1);
/* set character length */
if ((cflag & CSIZE) == CS7) {
ctrl_val |= ASC_CTL_MODE_7BIT_PAR;
} else {
ctrl_val |= (cflag & PARENB) ? ASC_CTL_MODE_8BIT_PAR :
ASC_CTL_MODE_8BIT;
}
/* set stop bit */
ctrl_val |= (cflag & CSTOPB) ? ASC_CTL_STOP_2BIT : ASC_CTL_STOP_1BIT;
/* odd parity */
if (cflag & PARODD)
ctrl_val |= ASC_CTL_PARITYODD;
/* hardware flow control */
if ((cflag & CRTSCTS)) {
ctrl_val |= ASC_CTL_CTSENABLE;
/* If flow-control selected, stop handling RTS manually */
if (ascport->rts) {
devm_gpiod_put(port->dev, ascport->rts);
ascport->rts = NULL;
pinctrl_select_state(ascport->pinctrl,
ascport->states[DEFAULT]);
}
} else {
/* If flow-control disabled, it's safe to handle RTS manually */
if (!ascport->rts && ascport->states[NO_HW_FLOWCTRL]) {
pinctrl_select_state(ascport->pinctrl,
ascport->states[NO_HW_FLOWCTRL]);
gpiod = devm_fwnode_get_gpiod_from_child(port->dev,
"rts",
&np->fwnode,
GPIOD_OUT_LOW,
np->name);
if (!IS_ERR(gpiod))
ascport->rts = gpiod;
}
}
if ((baud < 19200) && !ascport->force_m1) {
asc_out(port, ASC_BAUDRATE, (port->uartclk / (16 * baud)));
} else {
/*
* MODE 1: recommended for high bit rates (above 19.2K)
*
* baudrate * 16 * 2^16
* ASCBaudRate = ------------------------
* inputclock
*
* To keep maths inside 64bits, we divide inputclock by 16.
*/
u64 dividend = (u64)baud * (1 << 16);
do_div(dividend, port->uartclk / 16);
asc_out(port, ASC_BAUDRATE, dividend);
ctrl_val |= ASC_CTL_BAUDMODE;
}
uart_update_timeout(port, cflag, baud);
ascport->port.read_status_mask = ASC_RXBUF_DUMMY_OE;
if (termios->c_iflag & INPCK)
ascport->port.read_status_mask |= ASC_RXBUF_FE | ASC_RXBUF_PE;
if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
ascport->port.read_status_mask |= ASC_RXBUF_DUMMY_BE;
/*
* Characters to ignore
*/
ascport->port.ignore_status_mask = 0;
if (termios->c_iflag & IGNPAR)
ascport->port.ignore_status_mask |= ASC_RXBUF_FE | ASC_RXBUF_PE;
if (termios->c_iflag & IGNBRK) {
ascport->port.ignore_status_mask |= ASC_RXBUF_DUMMY_BE;
/*
* If we're ignoring parity and break indicators,
* ignore overruns too (for real raw support).
*/
if (termios->c_iflag & IGNPAR)
ascport->port.ignore_status_mask |= ASC_RXBUF_DUMMY_OE;
}
/*
* Ignore all characters if CREAD is not set.
*/
if (!(termios->c_cflag & CREAD))
ascport->port.ignore_status_mask |= ASC_RXBUF_DUMMY_RX;
/* Set the timeout */
asc_out(port, ASC_TIMEOUT, 20);
/* write final value and enable port */
asc_out(port, ASC_CTL, (ctrl_val | ASC_CTL_RUN));
spin_unlock_irqrestore(&port->lock, flags);
}
